The short answer
Twice a year is the honest Michigan baseline: once after the late-spring seed drop (the cleaning everyone skips) and once after the main fall leaf event, before hard freeze. Heavy canopy — mature oaks, overhanging maples, pine cover — earns a third pass, while open lots with young trees can sometimes hold at one thorough fall service.
The Two-Wave Reality
Michigan trees load gutters twice, not once. Everyone plans for autumn — the leaf event that fills systems visibly. Almost nobody plans for late spring, when maple helicopters, oak catkins, and cottonwood fluff mat over outlets in woven layers that look like nothing and drain like concrete, right before summer's heaviest storms arrive. The June overflow that 'came out of nowhere' came out of May, and the spring cleaning exists precisely because of it.
Your Real Schedule Depends on Your Canopy
Tree cover, not the calendar, sets the cadence. Heavy canopy — mature oaks over the roofline, the maple streets of the inner-ring suburbs, pine cover that sheds needle mats — runs twice yearly minimum with a third pass earned in big-drop years. Moderate cover holds at the two-wave standard. Open lots with young plantings can sometimes run one thorough late-fall service — with the honesty that roof grit and airborne debris still accumulate, and downspouts still deserve their annual flush test.
What 'Cleaned' Has to Mean
Frequency only matters if each service is complete: runs hand-cleared including the outlets, every downspout flushed until it proves flow, discharge confirmed away from the foundation, and photos documenting what you can't see from the ground. A scooped-middle cleaning that leaves outlets matted resets nothing — the failure chain our clogged-gutter guide traces starts at exactly the parts casual service skips.
The Freeze Deadline
The fall service carries a hard deadline: before sustained freeze. Debris that winters in a gutter becomes an ice dam's foundation, and the insurance implications of winter water damage make the late-fall slot the least optional appointment in exterior maintenance. Standing schedules solve the remembering: the trees repeat annually, and the service simply follows.
The Bottom Line
Twice a year for most homes — post-seed-drop and post-leaf-fall — with canopy honesty adjusting in either direction. From $149 per visit with full-service standards, it remains the cheapest protection any Michigan house buys.
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